公开(公告)号：US20230097280A1

公开(公告)日：2023-03-30

申请号：US17801377

申请日：2021-03-08

Applicant: HOYA CORPORATION ,  HOYA ELECTRONICS SINGAPORE PTE. LTD.

Inventor： Osamu NOZAWA ,  Keishi AKIYAMA ,  Hok Tak Lim ,  Tham Hui Jun

IPC: G03F1/32 ,  G03F1/24 ,  G03F1/60 ,  G03F1/80

Abstract: An object is to provide a mask blank
A mask blank having a substrate and a thin film, the substrate includes two main surfaces and a side surface with a chamfered surface provided between the two main surfaces and the side surface, one main surface of the two main surfaces includes an inner region including a center of the main surface and an outer peripheral region outside of the inner region, the thin film is provided on the inner region of the main surface, the surface reflectance Rs of the outer peripheral region with respect to light of 400 nm to 700 nm wavelength is 10% or less, and provided that Rf is the surface reflectance with respect to light of 400 nm to 700 nm wavelength in one section among sections of the thin film in the range of 9 nm to 10 nm film thickness, the contrast ratio (Rf/Rs) is 3.0 or more.

公开(公告)号：US11612304B2

公开(公告)日：2023-03-28

申请号：US16494926

申请日：2018-03-28

Applicant: HOYA CORPORATION

Inventor： Thomas Viebach ,  Tilman Schroeter

IPC: A61B1/00 ,  A61B1/05 ,  A61B1/06 ,  A61B1/31

Abstract: The invention relates to an endoscope including an endoscope head, a wide-angle lens on the distal end of the endoscope head, and a working channel extending in the endoscope head. Proximally from the wide-angle lens, the working channel is bent laterally toward the outer circumference of the endoscope head, wherein a distal working channel opening is formed on a lateral side of the endoscope head.

公开(公告)号：US20230080349A1

公开(公告)日：2023-03-16

申请号：US17801622

申请日：2021-07-19

Applicant: HOYA CORPORATION

Inventor： Masayuki HAGIWARA

IPC: A61B8/08 ,  A61B8/12 ,  A61B8/00 ,  A61B8/14

Abstract: An electronic endoscope system according to a first embodiment includes an electronic endoscope, a captured image processor, and an ultrasonic image processor. The electronic endoscope has, at a distal tip thereof, an image sensor, and an ultrasonic probe that repeatedly applies ultrasonic waves to sequentially obtain echo signals. The ultrasonic image processor has a noise detection unit that detects a noise component which is contained in a first echo signal among the echo signals and which is periodically generated at or above a preset threshold level, and a noise inhibition unit that generates a noise inhibition component which, by being added to a second echo signal outputted after the first echo signal, inhibits generation of the noise component in the second echo signal, and that adds the noise inhibition component to the second echo signal.

公开(公告)号：US20230051023A1

公开(公告)日：2023-02-16

申请号：US17794202

申请日：2021-01-28

Applicant: HOYA CORPORATION

Inventor： Kazuhiro HAMAMOTO

IPC: G03F1/24

Abstract: Provided is a reflective mask blank which includes an absorber film.
The reflective mask blank of the present invention is a reflective mask blank including a multilayer reflective film and a thin film for pattern formation in this order on a main surface of a substrate, in which the thin film contains tin, tantalum, niobium, and oxygen, and the oxygen deficiency rate of the thin film is 0.15 or more and 0.28 or less.

公开(公告)号：US20230023972A1

公开(公告)日：2023-01-26

申请号：US17783864

申请日：2020-11-26

Applicant: HOYA CORPORATION

Inventor： Christian EGGERT

IPC: G06V10/70 ,  G06T7/00

Abstract: Detections in video frames of a video signal, which are output from a machine learning model, are associated to generate a detection chain. Display of a detection in the video signal is caused based on a position of the detection in the detection chain, the confidence value of the detection and the location of the detection.

公开(公告)号：US11562822B2

公开(公告)日：2023-01-24

申请号：US17253344

申请日：2019-11-21

Applicant: HOYA CORPORATION

Inventor： Takayoshi Morishima ,  Keiji Ito ,  Kohei Iketani ,  Atsushi Watabe

IPC: G16H40/40 ,  A61B1/00 ,  A61B1/05 ,  A61B1/06 ,  A61B1/12

Abstract: A device, system, and method that: acquires information that a sterilized endoscope, having reusable and non-reusable parts, is used; outputs an instruction for collecting the used endoscope from a medical institution; acquires information on the number of endoscopes scheduled for inspection, a predetermined number of endoscopes not scheduled for inspection, and the number of endoscopes in an endoscope inventory; outputs an instruction for delivering a non-used replaceable endoscope to the institution in response to the collection instruction; and outputs an instruction for delivering a non-used endoscope to the institution when equation (2) is not satisfied, equation (2) being: endoscope inventory quantity>number of endoscopes scheduled for inspection+predetermined number.

公开(公告)号：US20230015283A1

公开(公告)日：2023-01-19

申请号：US17947993

申请日：2022-09-19

Applicant: HOYA CORPORATION

Inventor： Masao TAKANO

IPC: B24B9/10 ,  B32B7/022 ,  G11B5/73 ,  B32B27/32 ,  B32B27/36 ,  B32B27/40 ,  B32B37/10 ,  B32B37/14 ,  B32B37/18 ,  B32B38/00 ,  C03C19/00 ,  G11B5/84

Abstract: A sheet-like spacer to be used when a laminate of a plurality of subs rates is formed for the purpose of processing end faces of the substrates is provided between the adjacent substrates in the laminate to keep the adjacent substrates apart from each other. An area of the spacer is smaller than that of the substrates. A contact angle of a surface of the spacer with respect to pure water is 50° or less.

公开(公告)号：US20220409029A1

公开(公告)日：2022-12-29

申请号：US17780269

申请日：2021-02-03

Applicant: HOYA CORPORATION

Inventor： Akihiko NISHIDE ,  Kenta KOSUGI

IPC: A61B1/045 ,  G02B23/24

Abstract: An endoscope includes: an image sensor in which a color filters having two or more colors is disposed at an imaging position and has a predetermined array pattern; and a correction processing unit configured to repeatedly perform processing of changing a target pixel value at a target imaging position to a median value between a neighboring pixel value and the target pixel value, while changing the target imaging position, when a pixel value at a neighboring imaging position near the target imaging position including at least two most neighboring imaging positions on a row closest to the target imaging position with the target imaging position interposed therebetween at an imaging position of a color filter, which is on a row along one direction identical to the target imaging position in image data output from the image sensor, and has a same color as a color filter at the target imaging position, is set as a neighboring pixel value.

公开(公告)号：US20220401210A1

公开(公告)日：2022-12-22

申请号：US17779311

申请日：2020-11-10

Applicant: Hoya Corporation

Inventor： Demas SANGER

IPC: A61F2/16

Abstract: Provided are an intraocular lens and a technique associated therewith, wherein an average value (exceeding 0 D) of base difference values within a first region from a lens center O to a position r1 of a first boundary is greater than 5 times an average value (exceeding 0 D) of base difference values within the first region from a lens center O of a virtual spherical lens having a base power at the lens center O to the position r1, a second region has a power resulting from adding one or more positive constant powers to a reference aspheric power, in a third region, the power is reduced so as to provide a negative longitudinal spherical aberration that cancels at least part of a positive longitudinal spherical aberration caused by a cornea, and a second step value is greater than a first step value.

公开(公告)号：US20220347646A1

公开(公告)日：2022-11-03

申请号：US17864334

申请日：2022-07-13

Applicant: HOYA CORPORATION

Inventor： Taiji MIZUTA

IPC: B01J19/12

Abstract: Provided is a light irradiation device capable of appropriately suppressing positional misalignment between optical axes even though a plurality of light source modules are disposed in series. A light irradiation device includes a plurality of light source modules disposed in series, in which the light source modules each include a substrate, LED elements disposed on a main surface of the substrate, and an optical element having sidewall sections installed uprightly on side sections of the substrate, and a lens section supported by the sidewall sections and positioned above the LED elements, in which the optical element is made by integrally forming the sidewall sections and the lens section from the same material, and in which a linear expansion coefficient of the substrate, a linear expansion coefficient of the optical element, and a difference in linear expansion coefficient between the substrate and the optical element are within specific ranges.